Finding the Fourth Proportional to 11,304,371.28, 15,603,544.92 and 8,985,378.66
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Solution
The fourth proportional to 11,304,371.28, 15,603,544.92 and 8,985,378.66 is: 12,402,614.53
Step by Step Solution
- Step 1: Write the proportion equation
11,304,371.28 : 15,603,544.92 = 8,985,378.66 : x - Step 2: Convert to fraction form
11,304,371.28/15,603,544.92 = 8,985,378.66/x - Step 3: Cross multiply
11,304,371.28x = 15,603,544.92 × 8,985,378.66 - Step 4: Simplify right side
11,304,371.28x = 140,203,759,519,701.28 - Step 5: Solve for x
x = 140,203,759,519,701.28/11,304,371.28 - Step 6: Final answer
x = 12,402,614.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.